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RSSI-based Indoor Location Tracking System using Wireless Sensor Networks
Journal of The Korea Society of Computer and Information
Abbr :
JKSCI
2008, 13(7), pp.67-73
Publisher : The Korean Society Of Computer And Information
Research Area : Computer Science
2008, 13(7), pp.67-73
Publisher : The Korean Society Of Computer And Information
Research Area : Computer Science
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This paper describes a system for location tracking wireless sensor nodes in an indoor environment. The sensor reading used for the location estimation is the received signal strength indication (RSSI) as given by an RF interface. By tagging users with a mobile node and deploying a number of reference nodes at fixed position in the room, the received signal strength indicator can be used to determine the position of tagged users. The system combines Euclidean distance technique with signal strength obtained by measurement driven log-normal path loss model of 2.4 GHz wireless channel. The experimental results demonstrated the ability of this system to estimate the location with a error less than 1.3m.
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